一种卫星导航模拟器置信度评估方案及应用

置信度评估能够为卫星导航模拟器的研制与改进提供依据。提出了一种基于对数最小二乘的模糊层次分析法和相似度法相结合的置信度评估方案。该方案利用基于对数最小二乘的模糊层次分析法将卫星导航模拟器系统分解为若干子系统或模型,并利用相似度法计算各个子系统或模型的置信度,同时使用模糊层次分析法计算各子系统或模型的权重向量,而后再逐级综合得到模拟器系统的总置信度。该方案能够将复杂系统逐层细化,且求解的子系统或模型的权重向量与置信度较为客观真实,具有重要的工程参考价值。

A Confidence Evaluation Scheme of GNSS Signal Simulator System and Its Application

The confidence evaluation of GNSS signal simulator system can provide a foundation for its development and improvement. A confidence evaluation scheme is proposed based on the logarithmic least squares fuzzy analytic hierarchy process method (LLS FAHP) and the similarity method. The GNSS signal simulator system is decomposed into several subsystems or models with LLS FAHP, and the scheme uses a similarity method to calculate the confidence of each subsystems or models. Simultaneously, the scheme uses the LLS FAHP method to calculate the weight vector of each subsystems or models and then the total confidence of the simulator system is integrated step by step. The scheme can refine the complex system layer by layer. And the weight vector and confidence of the solved subsystems or models are objective, which has an important engineering reference value.